| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] has [adv] been show to | 18 |
|
| 2 | [noun sg] has [adv] been show to | 16 |
|
| 3 | has [adv] been show to be | 24 |
|
| 4 | has [adv] been show to [be] | 24 |
|
| 5 | has [adv] been show to be | 24 |
|
| 6 | has [adv] been show to [be] | 24 |
|
